Sunamp

Sunamp develops and manufactures thermal batteries from its base in Macmerry, East Lothian. Its technology stores heat rather than electricity, giving homes, commercial buildings and industrial users a way to hold energy for hot water, heating, cooling and process applications.

The company’s products use phase change materials to store thermal energy in a compact form. Sunamp works with heating and energy systems including heat pumps, solar generation and electricity tariffs, while its technology is also used in larger commercial and industrial installations. The Macmerry operation brings together product development, engineering and manufacturing.

For organisations exploring lower-carbon heat, energy storage or electrification projects, Sunamp sits at the intersection of manufacturing and energy technology. Its Scottish headquarters provides a contact point for product, technical and commercial enquiries, with the company also working through partners in other markets. Sunamp Limited is an active Scottish company and has operated from East Lothian as it has developed its thermal storage technology for domestic and business use.